fix(runtime-core): fix multiple .once event handlers on same component (#3904)

fix #3902

Author: LYlanfeng

packages/runtime-core/__tests__/componentEmits.spec.ts

@@ -245,21 +245,27 @@ describe('component: emit', () => {
  const Foo = defineComponent({
  render() {},
  emits: {
- foo: null
+ foo: null,
+ bar: null
  },
  created() {
  this.$emit('foo')
  this.$emit('foo')
+ this.$emit('bar')
+ this.$emit('bar')
  }
  })
  const fn = jest.fn()
+ const barFn = jest.fn()
  render(
  h(Foo, {
- onFooOnce: fn
+ onFooOnce: fn,
+ onBarOnce: barFn
  }),
  nodeOps.createElement('div')
  )
  expect(fn).toHaveBeenCalledTimes(1)
+ expect(barFn).toHaveBeenCalledTimes(1)
  })
 
  test('.once with normal listener of the same name', () => {

packages/runtime-core/src/componentEmits.ts

@@ -149,10 +149,11 @@ export function emit(
  const onceHandler = props[handlerName + `Once`]
  if (onceHandler) {
  if (!instance.emitted) {
- ;(instance.emitted = {} as Record<string, boolean>)[handlerName] = true
+ instance.emitted = {} as Record<any, boolean>
  } else if (instance.emitted[handlerName]) {
  return
  }
+ instance.emitted[handlerName] = true
  callWithAsyncErrorHandling(
  onceHandler,
  instance,